| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.41 | 0.39 | 0.02 |
| Feb | 0.47 | 0.48 | -0.01 |
| Mar | 1.13 | 1.24 | -0.11 |
| Apr | 1.99 | 2.01 | -0.02 |
| May | 2.53 | 2.81 | -0.28 |
| Jun | 1.73 | 1.81 | -0.08 |
| Jul | 1.54 | 1.59 | -0.05 |
| Aug | 1.35 | 1.36 | -0.01 |
| Sep | 1.34 | 1.36 | -0.02 |
| Oct | 1.12 | 1.22 | -0.10 |
| Nov | 0.70 | 0.72 | -0.02 |
| Dec | 0.44 | 0.46 | -0.02 |
14.75 | 15.45 | -0.70 |